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Supplementary Balance Sheet Information (Tables) | 12 Months Ended
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Dec. 31, 2023
Selected Statement of Operations Data [Abstract] |
Schedule of Cash and Short Term Bank Deposits | Cash, cash equivalents and short-term bank deposits:
|  | December 31, |
|  | 2 0 2 3 |  |  | 2 0 2 2 |
|  | U.S. dollars in thousands |
Cash |  | $ | 2,187 |  |  | $ | 4,535 |
Cash equivalents |  |  | 771 |  |  |  | 730 |
Total cash and cash equivalents |  | $ | 2,958 |  |  | $ | 5,265 |
Short-term bank deposits* |  | $ | 13,464 |  |  | $ | 12,040 |
* | The average interest rate on short-term deposits is 6.05% and 4.15%, as of December 31, 2023 and 2022, respectively.
Schedule of Other Current Assets | Other current assets:
|  | December 31, |
|  | 2 0 2 3 |  |  | 2 0 2 2 |
|  | U.S. dollars in thousands |
Government institutions |  | $ | 114 |  |  | $ | 36 |
Employees |  |  | 9 |  |  |  | 31 |
Interest receivable |  |  | 344 |  |  |  | 185 |
Sundry |  |  | 71 |  |  |  | 41 |
|  | $ | 538 |  |  | $ | 293 |
Schedule of Other Current Liabilities and Accruals | Other current liabilities and accruals:
|  | December 31, |
|  | 2 0 2 3 |  |  | 2 0 2 2 |
|  | U.S. dollars in thousands |
Payroll and related expenses |  | $ | 814 |  |  | $ | 840 |
Government institutions |  |  | 135 |  |  |  | 277 |
Accrued vacation pay |  |  | 68 |  |  |  | 64 |
Accrued expenses and sundry |  |  | 732 |  |  |  | 797 |
|  | $ | 1,749 |  |  | $ | 1,978 |

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- Definition Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses. + References No definition available. + Details
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